Global Patent Index - EP 0724321 A3

EP 0724321 A3 19980520 - Control apparatus for AC generator of motor vehicle

Title (en)

Control apparatus for AC generator of motor vehicle

Title (de)

Steuerungsvorrichtung für Kraftfahrzeugswechselstromgenerator

Title (fr)

Appareil de commande d'un alternateur de véhicule à moteur

Publication

EP 0724321 A3 19980520 (EN)

Application

EP 95119640 A 19951213

Priority

JP 1002095 A 19950125

Abstract (en)

[origin: EP0724321A2] A control apparatus for an AC generator of a motor vehicle of high reliability having substantially no adverse influence to an onboard battery and an onboard high-voltage load by suppressing to a passible minimum variation of a regulating voltage which may occur as contacts of a detection voltage change-over switch are degraded. An AC generator (1) of a motor vehicle includes a rectifier circuit (2) for rectifying an output of the AC generator including a field coil (102), an output change-over switch (71) for changing over an output of the rectifier circuit to either one of a battery (4) and a high-voltage electric load (5) mounted on the motor vehicle, and a voltage regulator (3A, 8) for regulating an exciting current supplied to the field coil in dependence on a terminal voltage of the battery as detected on a charging line connected to the battery by way of the output change-over switch upon charging of the battery from the output of the rectifier circuit, to thereby regulate the output voltage of the AC generator. <IMAGE>

IPC 1-7

H02J 7/14

IPC 8 full level

H02J 7/14 (2006.01); H02J 7/16 (2006.01); H02J 7/24 (2006.01); H02P 9/30 (2006.01)

CPC (source: EP US)

H02J 7/1438 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0724321 A2 19960731; EP 0724321 A3 19980520; EP 0724321 B1 20020410; DE 69526325 D1 20020516; DE 69526325 T2 20021031; JP H08205421 A 19960809; US 5686819 A 19971111

DOCDB simple family (application)

EP 95119640 A 19951213; DE 69526325 T 19951213; JP 1002095 A 19950125; US 56942995 A 19951208